| 区域重力调查中正常重力公式对比 |
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| 引用本文： | 杨亚斌,韩革命.区域重力调查中正常重力公式对比[J].物探与化探,2012(1):45-47,53. |
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| 作者姓名： | 杨亚斌 韩革命 |
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| 作者单位： | 中国地质科学院地球物理地球化学勘查研究所 |
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| 基金项目： | 地质矿产调查评价项目(1212010050235)资助 |
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| 摘 要： | 简要介绍了正常重力场定义及影响其值大小的参数,比较了1980正常重力公式与CGCS2000重力公式参数,对现阶段重力勘探工作中经常使用的正常重力与CGCS2000坐标系正常重力场进行对比分析,就区域重力调查工作中推广使用新正常重力公式的必要性进行了论述。由CGCS2000四个参数推导的正常重力场公式,与以往使用的正常重力场公式相比,更加科学、先进,更能准确反映真实的地球重力场。
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| 关 键 词： | 区域重力调查 正常重力公式 CGCS2000大地坐标系 |
A COMPARISON STUDY OF NORMAL GRAVITY FORMALAE IN REGIONAL GRAVITATIONAL SURVEY |
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| YANG Ya-bin,HAN Ge-ming.A COMPARISON STUDY OF NORMAL GRAVITY FORMALAE IN REGIONAL GRAVITATIONAL SURVEY[J].Geophysical and Geochemical Exploration,2012(1):45-47,53. |
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| Authors: | YANG Ya-bin HAN Ge-ming |
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| Institution: | (Institute of Geophysical and Geochemical Exploration,CAGS,Langfang 065000,China) |
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| Abstract: | This paper briefly describes the definition of the normal gravitational field and the parameters that affect its value,compares the 1980 normal gravity formulae and CGCS2000 normal gravitational field parameters,makes a comparative analysis of the normal gravity and CGCS2000 normal gravitational field parameters used frequently in present gravitational exploration work,and deals with the necessity of popularizing the new normal gravity formulae in regional gravitational survey.A comparison between the normal gravitational field formulae deduced by four parameters of CGCS2000 and previously used normal gravitational field formulae shows that the former formulae are more scientific and advanced and can more accurately reflect real earth gravitational field. |
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| Keywords: | normal gravity formula CGCS2000 regional gravity survey |
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